defconfig: enable nfraw, some ipv6 and vpn configs

NF_RAW is needed by data usage monitor in CM10.

Change-Id: Ie4cc0a6f9140d21905c46a242adda7014a33aab9
mach-tegra: fix framebuffer color conversion

Now the boot logo is displayed correctly.

Change-Id: I6cf0d3550339e94065ef4c3c38981e128fd3f7ff